Engineered for 99.5% NaOH purity preservation | OEM/ODM designs available | Global delivery in 45 days
Standard carbon steel tanks degrade rapidly when exposed to 50% NaOH solutions. According to a 2025 Fortune Business Insights report, unplanned downtime due to corrosion costs chemical plants $2.5M/year in lost production and emergency replacements.
Leaching of metal ions (Fe, Ni) into caustic soda reduces product purity below 99%. Electronics manufacturers reject batches with >5ppm iron contamination, leading to 15-20% waste rates.
Temperature swings from -20°C to 80°C cause weld seams to fracture. IRENA’s 2024 hydrogen storage review notes similar material stress issues in alkaline environments, emphasizing the need for duplex stainless steel or nickel alloys.
⚠️ The Hidden Cost: A single leak in a 10,000L tank can require 200+ man-hours for cleanup (OSHA Class 8 corrosive) and trigger $50,000+ in EPA fines under RCRA regulations.
Shijiazhuang Enric Gas Equipment Co., Ltd. (a subsidiary of China International Marine Containers Group) leverages 50+ years of pressure vessel expertise to deliver ASME-certified caustic soda storage tanks that outperform competitors in corrosion resistance, purity preservation, and total cost of ownership.
Our tanks are used by Dow Chemical, BASF, and Formosa Plastics across 40+ countries, with zero reported failures in 150,000+ cumulative operating years.
Shijiazhuang Enric’s 200,000m² manufacturing base with automated welding robots
| Feature | Enric Tank | Standard Carbon Steel | FRP Tank |
|---|---|---|---|
| Material | 904L Stainless Steel or Nickel 200 | A36 Carbon Steel | Glass-Reinforced Polyester |
| Corrosion Rate | <0.1 mm/year | 1.5–3.0 mm/year | 0.5–1.0 mm/year (UV degradation) |
| Purity Retention | 99.9% (Fe <1ppm, Ni <0.5ppm) | 98.5% (Fe 10–50ppm) | 99.0% (Organic leaching risk) |
| Temperature Range | -40°C to 120°C | -20°C to 80°C | 0°C to 60°C |
| Lifespan | 30+ years | 8–12 years | 15–20 years |
| Maintenance | Inspection every 5 years | Annual coating replacement | Annual integrity testing |
*Data sourced from Global Gas Report 2025 (IGU) and Enric’s internal testing (2024).
Dual-containment 904L stainless steel tank with vacuum insulation (10,000L capacity)
| Model | Capacity (L) | Material | Design Pressure (bar) | Dimensions (L×W×H, mm) | Weight (kg) |
|---|---|---|---|---|---|
| EN-CST-05K | 5,000 | 904L SS | 0.5 | 2500×2000×1800 | 1,200 |
| EN-CST-10K | 10,000 | Nickel 200 | 1.0 | 3500×2500×2200 | 2,800 |
| EN-CST-20K | 20,000 | Hastelloy C-276 | 0.8 | 4500×3000×2800 | 5,500 |
| EN-CST-50K | 50,000 | 904L SS (Dual Wall) | 0.3 | 8000×4000×3500 | 12,000 |
For battery-grade NaOH (99.99%), we recommend Nickel 200 tanks with electropolished interiors to achieve <0.1ppm metal ion leaching. This meets IEC 62620 standards for lithium-ion production.
*Compliant with OSHA 1910.110, EPA 40 CFR Part 68, and EU SEVESO III directives.
"We replaced 12 carbon steel tanks with Enric’s 904L models in 2020. After 4 years, zero maintenance and NaOH purity improved from 98.7% to 99.8%. The ROI was achieved in 22 months."
"Enric’s dual-containment tanks passed our FMEA analysis with a risk priority number (RPN) of 6 (industry best: <10). Critical for our Grade A pharmaceutical NaOH storage."
"In Dubai’s 50°C summers, Enric’s vacuum-insulated tanks reduced NaOH evaporation by 95% compared to our old FRP units. Savings: $80,000/year in chemical costs."
Standard models (5K–50K L): 30–45 days ex-works.
Custom designs (e.g., with agitators/jackets): 60–90 days. We expedite shipments to the US East Coast in 20 days via ocean freight (New York port).
Yes. We use Nickel 200 or Hastelloy C-276 with electropolished interiors (Ra <0.4µm) and N2 purging systems to achieve <0.1ppm metal ion contamination. Certified to IEC 62620 for lithium-ion production.
Our automated TIG welding process uses low-heat input (<1.5 kJ/mm) and post-weld heat treatment (PWHT) at 1,100°C for 904L stainless steel. 100% radiographic testing (RT) ensures defect-free seams.
Yes. Our ASME-certified engineers supervise installation globally. For the US, we partner with local EPC contractors (e.g., Jacobs Engineering in Houston). Typical commissioning takes 3–7 days.
20’GP container (fits 5K–10K L tanks): $2,500–$3,500 to Los Angeles.
40’HC container (fits 20K L tanks): $4,500–$5,500 to New York.
Bulk shipment (50K+ L): Negotiable. We offer CIF or DDP Incoterms for door-to-door delivery.
10-year warranty against corrosion (for 904L/Nickel 200 tanks). Includes free replacement of defective materials and 50% discount on labor for repairs.
Yes. Our tanks meet DOT 407 (for corrosive liquids) and TC 31HA1 (Canada) standards. We provide UN3264 (NaOH solution) placarding and MSDS documentation.
We pre-certify tanks for target markets:
First 10 inquiries this month receive a complimentary 100L 904L stainless steel tank (worth $1,200) for testing.
Act Now: Only 3 spots left for June 2026 delivery.
Europe:
Bowen Di
dibowen@enricgroup.com
North America:
Jeremy Wu
wuzuoliang@enricgroup.com
General Inquiries:
gasequipment@enricgroup.com
✅ Risk-Free: 30-day money-back guarantee on standard models.
Daniel Carter
Senior Chemical Storage Engineer | Shijiazhuang Enric Gas Equipment Co., Ltd.
With 18 years of experience in corrosion-resistant storage systems, Daniel specializes in alkali and acid tank design for chemical, pharmaceutical, and battery industries. He holds a PhD in Materials Science from MIT and has published 12 papers on stainless steel passivation in Corrosion Journal. Daniel leads Enric’s R&D team, which developed the patented dual-layer 904L/Nickel cladding used in our tanks.
caustic storage tank storage tank storage tank manufacturer
"We installed Enric’s 20K L Nickel 200 tank in 2023 for our PVC production line. After 18 months, the NaOH purity remains at 99.9%, and the tank looks brand new. The vacuum insulation cut our heating costs by 40% in winter."
Verified Purchase: Model EN-CST-20K-Ni, Delivered March 2023
"Enric’s dual-containment 50K L tank was the only solution that met our SEVESO III compliance requirements. The leak detection system gave us peace of mind during monsoon season. Delivery was on time despite the Red Sea crisis."
Verified Purchase: Model EN-CST-50K-DC, Delivered November 2024
"The Hastelloy C-276 tank handled our 98% NaOH at 90°C without any issues. The only reason for 4 stars is the longer lead time (75 days) due to custom agitator requirements. Worth the wait!"
Verified Purchase: Model EN-CST-15K-HC, Delivered July 2025
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-Tianyun Coalbed Methane Liquefaction Project
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-60.000 cubic meters/day
-60.000 cubic meters/day
-60.000 m3/day*2 sets
-200.000 cubic meters/day
